Deduplicate output attach on init and log attached output name

src/wayland.rs

@@ -168,14 +168,11 @@ pub fn run(
     let is_all = target_output == "all" || target_output == "*";
 
     if is_all {
-        let wl_outputs: Vec<_> = state.output_state.outputs().collect();
-        if wl_outputs.is_empty() {
-            // No outputs reported yet; let the compositor assign.
+        // OutputHandler::new_output already attached one layer per existing
+        // output during the roundtrip above. Only fall back to a compositor-
+        // assigned surface if none arrived.
+        if state.outputs.is_empty() {
             state.attach_output(&qh, None);
-        } else {
-            for wl_out in &wl_outputs {
-                state.attach_output(&qh, Some(wl_out));
-            }
         }
     } else {
         let wl_out = find_output(&state.output_state, &target_output);
@@ -343,6 +340,12 @@ impl OutputHandler for AppState {
         output: wl_output::WlOutput,
     ) {
         if self.target_output == "all" || self.target_output == "*" {
+            let name = self
+                .output_state
+                .info(&output)
+                .and_then(|i| i.name)
+                .unwrap_or_else(|| "<unnamed>".into());
+            log::info!("attaching output: {}", name);
             self.attach_output(qh, Some(&output));
         }
     }